City of Frisco Engineering Standards

Engineering Standards
BLOCK
BLOCK
1200' STRAIGHT STREET
90 - 120°
250' RADIUS - TYPE E, F, G
350' RADIUS - TYPE D
FIGURE 2.8: Change in Street Direction: Curve
BLOCK
BLOCK
R.O.W.
150' MIN
90 - 120°
125' MIN
"T" OR
OFF-SET
R.O.W.
1200' STRAIGHT STREET
FIGURE 2.9: Change in Street Direction: Offset
4. Residential streets that do not intersect with a Type A or B thoroughfare may extend to a
length of one thousand eight hundred feet (1,800’) without a change in direction when one of
the following is provided:
a. A zipper street with a twenty two foot (22’) wide travel section with parking cut-outs that
are nine feet (9’) wide and forty-four feet (44’) to eighty-eight feet (88’) long and a tree
island between the parking cut-outs that is a minimum of thirty feet (30’) long and nine
feet (9’) wide. Parking cut-outs shall be offset from parking cut-outs on the opposite side
of the street. A tree shall be planted in each tree island per the requirements in the
Zoning Ordinance. Front entry homes are prohibited on this type of street. See
Figure 2.10.
Section 2 – Thoroughfare Design Requirements May 2012 Page 2-18